Archive for March, 2012|Monthly archive page

Tiburon paintbrush (Castilleja affinis ssp. neglecta) is a perennial forb that is limited to serpentine soils in only a few Bay Area locations. In its southern-most station, Paintbrush hill, located on Coyote Ridge, the population of this rare plant is slowly declining. We believe that certain grazers/browsers – namely rabbits – have been impacting the plants as they flower. We’re testing this hypothesis with a paired experiment using caged and uncaged paintbrush habitat. We’ll be measuring survivorship, recruitment and fecundity. What a beautiful place to work. More to come… Read the rest of this entry »